I can sympathise with your dad, sometimes the cure isn't worth the hassle.My second wife was diagnosed with panceatic cancer, stage two,she accepted and said this is it. Well we talked her into a very painfull surgery, there was a full two months of pain recovering, when they said it had returned but therewas still chemo, she asked how long. less than a year, she said forget it. I have a problem that cant be resolved by surgery, when the eventual problem comes, I may justb opt to call it quits also, there is a dignity and quality issue in life.I have had a great run, hope for another couple of years or more, , but just breathing isn't living.